Hedgewars 0.9.7 Free Full Game (Source)

A completely redesigned, redrawn frontend, built to be both prettier and easier to use.
Completely reworked netplay, supports players joining and leaving games in progress
Admin controls for network play
A new, official central dedicated server, allowing mutiple "rooms" per server, a multiplayer lobby for matchmaking
The ability to customize your team in exciting new ways, including the ability to customize the visual look of your hedgehogs
New maps, themes, and graphics, a huge addition to content
New weapons, gameplay mechanics and game options. New super weapons that you will find only in crates
New working flames that damage hedgehogs and corrode the terrain
New sounds, music and media
Atmostrophic's chat border